SAW sensor read range limitations and perspectives

Nawaz, Faiza; Jeoti, Varun

doi:10.1007/s11276-014-0765-3

Cited by 21 publications

(4 citation statements)

References 31 publications

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“…Device efficiency is high when input signal frequency matches with resonating frequency. The resonating frequency of a SAW device is associated with propagation velocity ( p V ) of the acoustic wave and the pitch value ( p ) (shown in equation 3 [11][12])…”

Section: Sensor's Working Principlementioning

confidence: 99%

Design and Optimization of ZnO Nanostructured SAW-Based Ethylene Gas Sensor with Modified Electrode Orientation

Sarkar¹,

Venkataramana²,

Harathi³

et al. 2020

Adv. sci. technol. eng. syst. j.

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Here the work approaches the detection of fruit maturity level. In addition, a gas sensor is proposed to obtain better sensitivity to know the level of ethylene gas released from matured fruit. Better sensitivity can be achieved by obtaining an enhanced active area, changing the intermediate layer thickness and the pitch value of the electrode. Hexagonal nanostructured zinc oxide is used as a sensing layer. Finally, frequency shift and a total displacement of the device are increased. The hexagonal structured ZnO nanorod-based surface acoustic wave gas sensor may be used to detect ethylene gas in fruit ripening sensor with enhanced sensitivity. This paper reports a simulation of Surface Acoustic Wave (SAW) wave propagation with respect to interdigitated transducer (IDT), piezoelectric material and sensing layers.

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Section: Sensor's Working Principlementioning

confidence: 99%

Design and Optimization of ZnO Nanostructured SAW-Based Ethylene Gas Sensor with Modified Electrode Orientation

Sarkar¹,

Venkataramana²,

Harathi³

et al. 2020

Adv. sci. technol. eng. syst. j.

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“…In Europe 25 mW is permitted at 2.45 GHz and 433 MHz, enabling 36 cm and 2.5 m ranges respectively [62] . However, using a 4 W source readout distance of 13 m at 2 GHz, 26 m at 1 GHz and 51 m at 500 MHz is calculated theoretically [63] .…”

Section: Passive Wireless Sensorsmentioning

confidence: 99%

Development of a reader device for fully passive wireless sensors

et al. 2017

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I would like to express gratitude for all funding sources that contributed towards this work including; the VTT Thesis completion grant, the EU ERASMUS Mundus TEAM exchange program, TEKES SHOK Intersync project and Enterprise Ireland DIACAPS project. 4I would like to acknowledge the revolutionary work of the great Nicola Tesla, father of modern power systems, radio communications and wireless power transfer. His ideas are at the core of this work.

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“…A passive WSSN can be ideal for various industrial applications, such as a control room or a power plant monitoring. A SAW wave is 100 times smaller than IC's based signal [16], hence it has better signal penetration, and can be tagged on metals and liquid. The used of piezoelectric crystal as the substrate materials in SAW sensors enables the sensor to work in high temperatures condition, up to several hundred degrees, They could also withstand high energy X-rays, gamma ray and inherently immune to ionizing radiation.…”

Section: Wirelesshart Standardmentioning

confidence: 99%

“…Hence, RRC is also known as frequency interference. SAW sensor's reading range limitations and advanced enhancement techniques are deliberated in [16]. A standardized network protocol is required for any WSSN implementation in an Industrial environment, in order to maintain communication consistency, interrogators connectivity and reliability of data delivery.…”

Section: Introductionmentioning

confidence: 99%

Performance assessment of WirelessHART technology for its implementation in dense reader environment

Nawaz

Jeoti

2015

Computing

Self Cite

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The use of wireless technology for industrial automation and process control has become a favoured choice as it reduces the hassle of cable installation and maintenance cost. The WirelessHART protocol is the first open and interoperable industrial wireless sensor network standard, that is based on Time Division Multiple Access and channel hopping as a Medium Access Control protocol. Industrial wireless sensor networks must support reliable and real-time data collection in harsh environments. The objective of this paper is to demonstrate the fidelity of implementing WirelessHART in surface acoustic wave (SAW) sensor network, which is a Dense Reader Environment intended for industrial monitoring. Comparison between the existing industrial monitoring applications has been deliberated, for which their future perspectives have been extensively discussed. Three possible network topologies for WirelessHART network are simulated in proposing the optimal network design for the SAW sensor network. In fact, the proposed system configurations are also tested with RF transmitters and receivers for better understanding on WirelessHART and its application in a dense interrogators network.

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SAW sensor read range limitations and perspectives

Cited by 21 publications

References 31 publications

Design and Optimization of ZnO Nanostructured SAW-Based Ethylene Gas Sensor with Modified Electrode Orientation

Design and Optimization of ZnO Nanostructured SAW-Based Ethylene Gas Sensor with Modified Electrode Orientation

Development of a reader device for fully passive wireless sensors

Performance assessment of WirelessHART technology for its implementation in dense reader environment

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